GaneshPatil7517 commented on code in PR #19827:
URL: https://github.com/apache/datafusion/pull/19827#discussion_r2698183294
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datafusion/functions/src/regex/regexpreplace.rs:
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@@ -659,6 +661,28 @@ mod tests {
use super::*;
+ #[test]
+ fn test_regex_replace_posix_groups() {
+ // Test that \1, \2, etc. are replaced with ${1}, ${2}, etc.
+ assert_eq!(regex_replace_posix_groups(r"\1"), "${1}");
+ assert_eq!(regex_replace_posix_groups(r"\12"), "${12}");
+ assert_eq!(regex_replace_posix_groups(r"X\1Y"), "X${1}Y");
+ assert_eq!(regex_replace_posix_groups(r"\1\2"), "${1}${2}");
+
+ // Test double backslash (from SQL escaped strings like '\\1')
+ assert_eq!(regex_replace_posix_groups(r"\\1"), "${1}");
+ assert_eq!(regex_replace_posix_groups(r"X\\1Y"), "X${1}Y");
+ assert_eq!(regex_replace_posix_groups(r"\\1\\2"), "${1}${2}");
Review Comment:
ok sir ill add it....
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